RS485 GSM Modems, RS485 to GPRS

Oct 20,2016

Introduction USR-GPRS232-734 is a new GPRS device developed by USR IOT in 2016. Maturation software functions, covering mostly conventional application scenarios. Users can realize Serial to Network bidirectional transparent data transmission via simple configuration. Supporting custom registration package, heart beat package. Supporting 2 Socket Connection, and USR cloud join in. USR-GPRS232-734 use DC power supply …

What occasions to use GPRS Modem?

Aug 07,2016

GPRS Modem can be applied in many fields, including electricity, environmental protection, water conservancy, industrial, weather, traffic, security, mapping and other. Although it described above so many GPRS applications. But from a practical point of view, the more we want to have some clear principles to determine a unified collection system is suitable for use …

GPRS Modem data transmission applications Basics

Aug 05,2016

GPRS Modem stands for GPRS data transmission unit in the country at present actually GPRS Modem has a more clear agreement: GPRS Modem is designed for serial data transfer via GPRS network GPRS wireless devices. Four core functions of GPRS Modem: 1. Integrated TCP / IP protocol stack GPRS Modem encapsulated in the PPP dial-up …

GPRS Module Serial RS232/RS485 to GPRS Modem

Jul 12,2016

Introduction of RS232 / RS485 GPRS Module This is a RS232/RS485 to gprs dtu module,used for data transparent transmission. The module is a wireless terminal equipment which can convert serial data to IP data or convert IP data to serial data through gprs network.USR-GPRS232-730-pcba is based on USR-GM3.Clients can use this product to realize bidirectional …

Serial to GSM Modems, Serial RS232 to GPRS GSM/GPRS/EDGE

Mar 30,2016

Introduction of Serial to GSM Modems USR-GPRS232-720 Serial to GSM Modems are used to realize mutual data transmission between serial and GPRS network, which are developed on the basis of gprs module GM1. The device has a wide voltage of 9V to 24V. It can be powered via DC adapter and DIP terminal power supply. …

Using GPRS Modems for Remote Data Acquisition of Temperature and Humidity Sensor

Feb 29,2016

1. GPRS setting method to connect to the Internet and communications:http://www.usr.so/Faq/79.html 2. Method according to the above communication networking success, and then install VCOM software. 3. Sensor adopts the modbus RTU communication protocols, we use modbus poll software to collect data. Set the connection for the virtual serial port com1 serial port(premise:Setting GPRS module and …

GPRS Modems transmission mode

Feb 18,2016

Data transmission mode: GPRS Modems can be set to different operating modes to meet the requirements of different user applications. Under different operating modes, GPRS Modems position in GSM / GPRS communication system platform is not the same. Transparent transmission mode: The device does not resolve any data received from the serial port directly to the …

Regarding GPRS / GSM Modems network connection explanation

Feb 17,2016

Many user doubt: Why GPRS / GSM modems only can go into a public IP computer? Can it work at a campus network/corporate network? Answer: Yes, it can. But it need cooperate with campus network/corporate network. Detail explanation as below: GPRS / GSM modems connect to network is send a TCP/UDP connection, during connection and communication …

GSM Modems transparent transmission mode setting method

Feb 17,2016

SMS DTU transparent transmission mode setting method Set SMS transparent transmission mode two major commands AT+CIMOD=”MOD”<CR><LF> Configuration module operating modes: MOD said operating mode, 0 means transparent transmission mode, 1 serial command mode, two said AT command mode, 3 HTTPD Client mode, four said messaging transparent transmission mode. Configuration command: AT + CIMOD = “4” …